Drone delivery packaging system

ABSTRACT

A lidded container includes a tray and a removable lid. The tray includes first and second locking panels hingedly connected to respective first and second tray side walls. The lid includes corner gussets disposed on the interior surfaces of first and second lid side walls. When the lid is placed on the tray to close it, the first and second locking panels are reverse folded against the exterior surfaces of the first and second tray side walls. In this configuration, angled edges defined by the lid&#39;s corner gussets mate with complementary angled edges of the first and second locking panels to lock the removable lid to the tray.

REFERENCE TO RELATED APPLICATION

This application claims the benefit of priority under 35 U.S.C. § 119(e)of U.S. provisional application Ser. No. 62/417651 filed on Nov. 4,2016, and provisional application Ser. No. 62/418318 filed on Nov. 7,2016 which is hereby incorporated by reference in its entirety.

BACKGROUND

The field of the invention relates generally to a packaging systemincluding a carton and removable lid, and more particularly to apackaging system suitable for use as a drone delivery shippingcontainer.

In recent years, exploration of the use of UAV (Unmanned AerialVehicles) or drones by industry for delivering goods and products hasrapidly expanded. Drones are convenient for rapid point-to-pointdelivery; however, using drones to deliver packages presents somechallenges. For example, packages delivered via drone may be more likelyto be delivered to locations that are exposed to the elements, e.g.,dropped off in a puddle or left out in the rain. If a suitablywater-resistant container is not used in these situations, the containerand/or its contents may be ruined. As another example, a conventionalshipping container may be difficult or impossible for a drone's pickupsystem to reliably grasp and release. As a third example, the shiftingof contents within a container during flight may result in productdamage or threaten the drone's flight performance and safety.Accordingly, it is an object of at least one aspect of the presentinvention to provide a packaging system that solves or mitigates one ormore of the problems associated with drone delivery.

SUMMARY

According to a first aspect of the invention there is provided a liddedcontainer that includes a tray and a removable lid. The tray includes abottom wall, first and second tray side walls, a first locking panelhingedly connected to an upper edge of the first tray side wall, and asecond locking panel hingedly connected to an upper edge of the secondtray side wall. The removable lid includes a top wall, first and secondlid side walls, first and second corner gussets disposed on an interiorsurface of the first lid side wall, and third and fourth corner gussetsdisposed on an interior surface of the second lid side wall. The first,second, third, and fourth corner gussets define respective first,second, third, and fourth gusset angled edges. The lidded container isconfigured to be placed in a closed and locked configuration by placingthe removable lid over an open top of the tray and pressing downwards soas to cause the first and second locking panels to fold outwardly untilexterior surfaces of respective first and second locking panels are atleast substantially adjacent to respective exterior surfaces of thefirst and second tray side walls. This configuration allows the firstgusset angled edge to mate with a first complementary angled edge of thefirst locking panel, the second gusset angled edge to mate with a secondcomplementary angled edge of the first locking panel, the third gussetangled edge to mate with a third complementary angled edge of the secondlocking panel, and the fourth gusset angled edge to mate with a fourthcomplementary angled edge of the second locking panel so as to lock theremovable lid to the tray.

Optionally, the first and second locking panels are substantiallytrapezoidal in shape.

Optionally, the first, second, third, and fourth corner gussets aresubstantially triangular in shape.

Optionally, the tray includes first, second, third, and fourth traycorner gussets.

Optionally, the first lid side wall defines a first access notch in alower edge of the first lid side wall, and the second lid wall defines asecond access notch in a lower edge of the second lid side wall. Thefirst and second access notches are configured to provide access to therespective first and second locking panels when the lidded container isin the closed and locked configuration.

Optionally, the first locking panel defines a firstgenerally-rectangular notch in a lower edge of the first locking panel,and the second locking panel defines a second generally-rectangularnotch in a lower edge of the second locking panel.

Optionally, the removable lid is configured to be removed from the trayby pressing inwardly on portions of first and second locking panels thatare exposed through the first and second access notches so as to movethe first, second, third, and fourth gusset angled edges out ofalignment with the respective first, second, third, and fourthcomplementary angled edges, thereby allowing the removable lid to belifted up and off of the tray.

Optionally, the lidded container forms part of a drone delivery systemincluding a drone that is configured to carry the lidded container to adestination.

According to a second aspect of the invention, there is provided a setof blanks for forming a lidded container. The set of blanks includes atray blank for forming a tray and a lid blank for forming a lid. Thetray blank includes a first plurality of panels that are hingedlyconnected to one another and including, in series: a first locking panelthat defines first and second angled locking edges; a first side panelconfigured to form a first tray side wall in a set-up tray; a bottompanel configured to form a bottom wall in the set-up tray; a second sidepanel configured to form a second tray side wall in the set-up tray; anda second locking panel defining third and fourth angled locking edges.The lid blank includes: a top panel configured to form a top wall in aset-up lid; a first lid side wall panel hingedly connected along a firstside of the top panel and configured to form a first side wall in theset-up lid; a second lid side wall panel hingedly connected along asecond side of the top panel and configured to form a second side wallin the set-up lid; a first pair of gusset panels configured to form afirst corner gusset in the set-up lid, the first corner gusset defininga first gusset angled edge; a second pair of gusset panels configured toform a second corner gusset in the set-up lid, the second corner gussetdefining a second gusset angled edge; a third pair of gusset panelsconfigured to form a third corner gusset in the set-up lid, the thirdcorner gusset defining a third gusset angled edge; and a fourth pair ofgusset panels configured to form a fourth corner gusset in the set-uplid, the fourth corner gusset defining a fourth gusset angled edge. Theset-up lidded container is configured to be placed in a closed andlocked configuration by placing the set-up lid over an open top of theset-up tray and pressing downwards so as to cause the first and secondlocking panels to fold outwardly until exterior surfaces of respectivefirst and second locking panels are at least substantially adjacent torespective exterior surfaces of the first and second tray side walls,such configuration allowing the first gusset angled edge to mate withthe first angled locking edge, the second gusset angled edge to matewith the second angled locking edge, the third gusset angled edge tomate with the third angled locking edge, and the fourth gusset anglededge to mate with the fourth angled locking edge so as to lock theset-up lid to the set-up tray.

Within the scope of this application it is envisaged that the variousaspects, embodiments, examples, features and alternatives set out in thepreceding paragraphs, in the claims and/or in the following descriptionand drawings may be taken independently or in any combination thereof.For example, features described in connection with one embodiment areapplicable to all embodiments unless there is incompatibility offeatures.

BRIEF DESCRIPTION OF THE DRAWINGS

Exemplary embodiments of the invention will now be described withreference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a packaging system that includes atleast a lidded carton according to one embodiment of the invention.

FIG. 2 is a perspective view of the assembled tray portion and lidportion of the packaging system of FIG. 1.

FIG. 3 is a top plan view of a blank used to form the tray portion ofFIG. 2.

FIG. 4 is a top plan view of a blank used to form the lid portion ofFIG. 2.

FIG. 5-8 are views showing various steps in the construction of thepackaging system of FIG. 1.

FIG. 9 is a perspective view of the packaging system of FIG. 1 beingtransported by a drone.

DETAILED DESCRIPTION

Detailed descriptions of specific embodiments of cartons and blanks aredisclosed herein. It will be understood that the disclosed embodimentsare merely examples of the way in which certain aspects of the inventioncan be implemented and do not represent an exhaustive list of all of theways the invention may be embodied. As used herein, the word “exemplary”is used expansively to refer to embodiments that serve as illustrations,specimens, models, or patterns. Indeed, it will be understood that thecrates and blanks described herein may be embodied in various andalternative forms. The Figures are not necessarily to scale and somefeatures may be exaggerated or minimized to show details of particularcomponents. Well-known components, materials or methods are notnecessarily described in great detail in order to avoid obscuring thepresent disclosure. Any specific structural and functional detailsdisclosed herein are not to be interpreted as limiting, but merely as abasis for the claims and as a representative basis for teaching oneskilled in the art to variously employ the invention.

In the embodiments detailed herein, the term “carton” refers, for thenon-limiting purpose of illustrating the various features of theinvention, to a container for shipping, transporting, storing, and/ordispensing articles, such as, e.g., one or more products being deliveredto a consumer. However, it is contemplated that the teachings of theinvention can be applied to various containers suitable for carrying awide variety of articles.

Referring to FIG. 1, there is shown a packaging system 200 that includesat least a lidded carton 201. The lidded carton 201 includes a trayportion 202 and a removable lid 204.

Referring to FIG. 3, there is shown a first or tray blank 10 for formingtray portion or tray 202. Referring to FIG. 4, there is shown a secondor lid blank 12 for forming removable lid 204. The blanks 10, 12 areformed from a sheet of suitable substrate. It is to be understood that,as used herein, the term “suitable substrate” includes all manner offoldable sheet material such as paperboard, corrugated board, cardboard,plastic, combinations thereof, and the like. It should be recognizedthat one or other numbers of blanks may be employed, for example, toprovide the lidded carton described in more detail below.

In one or more embodiments, blanks 10, 12 can be formed from apaperboard, corrugated board, or cardboard in which one or both sides ofthe blanks, are printed and/or treated with one or more coatings, suchas for example, one or more waterproof coatings and/or one or morecoatings designed to provide a smooth and/or visually-attractive surface(e.g., a white or other colored surface). In one or more embodiments,informational or promotional material such as, e.g., a brand name orlogo, can be printed on a treated side. In addition to branding orpromotional material, additional printing and/or embossing processes maybe applied to the surfaces of the blanks 10, 12 to provide betterairflow and reduced drag for optimized aerodynamics while in flight,potentially reducing drone energy requirements and increasing rangeand/or payload.

Referring to FIG. 3, tray blank 10 is generally rectangular in shape andis generally symmetrical about central longitudinal and transverse axes.Tray blank 10 has a base panel 14. Base panel 14 is hingedly connectedto: a first side panel 16 via longitudinal fold line 48; a second sidepanel 18 via longitudinal fold line 44; a front end panel 20 viatransverse fold line 50; and a rear end panel 22 via transverse foldline 46. In the illustrated embodiment the first and second side panels16, 18, and front and rear end panels 20, 22 taper outward slightly frombase panel 14. This taper creates a visual and outward taper from thebase of the tray to the top of the tray, once assembled.

Foldably connected to the first side edge 76 of the front panel 20 is afirst front gusset panel 24. Foldably connected to the second side edge54 of the front panel 20 is a second front gusset panel 38. Foldablyconnected to the front side edge 72 of first side panel 16 is a firstforward side gusset panel 26. Foldably connected to the rear side edge70 of first side panel 16 is a first rear side gusset panel 28. Foldablyconnected to the first side edge 66 of the rear end panel 22 is a firstrear gusset panel 30. Foldably connected to the second side edge 69 ofrear end panel 22 is a second rear gusset panel 32. Foldably connectedto the front side edge 58 of second side panel 18 is a second forwardside gusset panel 36. Foldably connected to the rear side edge 60 ofsecond side panel 18 is a second rear side gusset panel 34.

As shown, the first front gusset panel 24 and the first forward sidegusset panel 26 are joined by an angled crease line 74. The second frontgusset panel 38 and the second forward side gusset panel 36 are joinedby an angled crease line 56. The first rear gusset panel 30 and thefirst rear side gusset panel 28 are joined by an angled crease line 68.The second rear gusset panel 32 and the second rear side gusset panel 34are joined by an angled crease line 62.

When the tray 202 is constructed, the blank 10 forms four corner gussets11, 13, 15, 17, each gusset being formed by two cooperating gussetpanels. Each gusset collapses against itself during erecting to providean enhanced seal around the sides of the finished tray.

Foldably connected to the outer edge 78 of first side panel 16 is afirst side locking panel 40. First side locking panel 40 is generallytrapezoidal in shape and includes an inwardly-angled front side edge 86and an inwardly-angled rear side edge 88. A generally rectangular notch84 is struck from the first side locking panel's outer edge 85. Notch 84defines a notch edge 150. Foldably connected to the outer edge 82 ofsecond side panel 18 is a second side locking panel 42. Second sidelocking panel 42 is generally trapezoidal in shape and includes aninwardly-angled front side edge 90 and an inwardly-angled rear side edge92. A generally-rectangular notch 83 is struck from the second sidelocking panel's outer edge 87. Notch 83 defines a notch edge 151.

Referring to FIG. 4, lid blank 12 is generally rectangular in shape andis generally symmetrical about central longitudinal and transverse axes.Lid blank 12 has a top panel 94. Top panel 94 is hingedly connected to:a first side panel 102 via longitudinal fold line 71; a second sidepanel 100 via longitudinal fold line 75; a front end panel 98 viatransverse fold line 73; and a rear end panel 96 via transverse foldline 77.

Foldably connected to the first side edge 105 of the front panel 98 is afirst front gusset panel 51. Foldably connected to the second side edge127 of the front panel 98 is a second front gusset panel 55. Foldablyconnected to the front side edge 109 of first side panel 102 is a firstforward side gusset panel 53. Foldably connected to the rear side edge111 of first side panel 102 is a first rear side gusset panel 65.Foldably connected to the first side edge 115 of the rear end panel 96is a first rear gusset panel 63. Foldably connected to the second sideedge 117 of rear end panel 96 is a second rear gusset panel 61. Foldablyconnected to the front side edge 123 of second side panel 100 is asecond forward side gusset panel 57. Foldably connected to the rear sideedge 121 of second side panel 100 is a second rear side gusset panel 59.

As shown, the first front gusset panel 51 and the first forward sidegusset panel 53 are joined by an angled crease line 107. The secondfront gusset panel 55 and the second forward side gusset panel 57 arejoined by an angled crease line 125. The first rear gusset panel 63 andthe first rear side gusset panel 65 are joined by an angled crease line113. The second rear gusset panel 61 and the second rear side gussetpanel 59 are joined by an angled crease line 61.

When the lid 204 is constructed, the blank 12 forms four corner gussets140, 142, 144, 146, each gusset being formed by two cooperating gussetpanels. Each gusset collapses against itself during erecting to providean enhanced seal around the sides of the finished tray.

First side panel 102 includes a generally-rectangular access notch 129struck from the first side panel's outer edge 130. Second side panel 100includes a generally-rectangular access notch 131 struck from the secondside panel's outer edge 132.

The tray 202 may be constructed by applying glue or other adhesive to:an outside surface of gusset panel 24 and/or gusset panel 26; an outsidesurface of gusset panel 28 and/or gusset panel 30; an outside surface ofgusset panel 32 and/or gusset panel 34; and an outside surface of gussetpanel 36 and/or gusset panel 38. The first and second side wall panels16, 18 and front and rear end wall panels 20, 22 are then foldedinwardly about their respective fold lines 48, 44, 50, 46 until they aregenerally perpendicular to base panel 14. This folding brings theoutside surfaces of cooperating gusset panels into contact with oneanother and secures them together. Glue or other adhesive treatment canbe applied to an interior surface of gusset panels 24, 38, 30, 32.Gussets 11, 13 are folded inwardly about respective crease lines 76, 54,bringing the interior surfaces of gusset panels 24, 38 into contact withan interior surface of front end panel 20 and securing them thereto.Gussets 15, 17 are folded inwardly about respective crease lines 66, 64,bringing the interior surfaces of gusset panels 30, 32 into contact withan interior surface of rear end panel 22 and securing them thereto.First and second side locking panels 40, 42 are folded outwardly aboutrespective fold lines 78, 44 until they are generally parallel to basepanel 14. This results in the fully-assembled tray 202 as shown in FIG.2 and prepares tray 202 to receive lid 204.

The lid 204 may be constructed by applying glue or other adhesive to: anoutside surface of gusset panel 51 and/or gusset panel 53; an outsidesurface of gusset panel 55 and/or gusset panel 57; an outside surface ofgusset panel 59 and/or gusset panel 61; and an outside surface of gussetpanel 63 and/or gusset panel 65. The first and second side wall panels102, 100 and front and rear end wall panels 98, 96 are then foldedinwardly about their respective fold lines 71, 75, 73, 77 until they aregenerally perpendicular to top panel 94. This folding brings the outsidesurfaces of cooperating gusset panels into contact with one another andsecures them together. Glue or other adhesive treatment can be appliedto an interior surface of gusset panels 57, 59, 53, 65. Gussets 150, 151are folded inwardly about respective crease lines 109, 111 bringing theinterior surfaces of gusset panels 53, 65 into contact with an interiorsurface of first side panel 102 and securing them thereto. Gussets 152,153 are folded inwardly about respective crease lines 123, 121 bringingthe interior surfaces of gusset panels 57, 59 into contact with aninterior surface of second side panel 100 and securing them thereto.This results in the fully-assembled lid 204 as shown in FIG. 2.

To close the carton 201, lid 204 is placed over top of the tray 202 andpressed downwards. This forces the locking panels 40, 42 to foldoutwardly until their exterior surfaces are substantially parallel andadjacent to (e.g., in face-contacting relationship with) the exteriorsurfaces of respective first and second side panels 16, 18. Thisconfiguration causes the angled edges 160, 161, 162, 163 of lid gussets150, 151, 152, 153 to automatically mate with respective complementaryangled edges 86, 88, 90, 92 of first and second locking panels 40, 42,thereby locking the lid 204 in place so as to create a secure connectionbetween lid 204 and tray 202. Advantageously, the lid 204 can be lockedto tray 202 without the need for an adhesive connection therebetween,although in certain embodiments glue or other adhesive may be used tostrengthen the connection. To remove the lid 204, a user can pushinwardly on the portions of locking panels that are exposed to viewthrough access notches 129, 131. This moves the angled edges 86, 88, 90,92 of locking panels out of alignment with respective angled edges 162,163, 160, 161 of gussets 152, 153, 150, 151 allowing the lid 204 to belifted up and off of tray 202.

Access notches 129, 131 provide access to respective notches 84, 83 offirst and second locking panels 40, 42. Notches 40, 42 may be used bythe pickup system of a drone 300 (see FIG. 9) to lock onto the shippingcontainer 201 and prevent the shipping container 201 from shiftingduring transport. The drone's pickup system may include, e.g., first andsecond grasping arms 302, 304 that engage respective first and secondnotches 83, 84 via notch edges 151, 150.

In a preferred embodiment, a drone delivery system 200 includes, inaddition to lidded container 201, an adhesive sheet 206. Adhesive sheet206 may be of the type described in U.S. Pat. No. 9,340,317, theentirety of which is incorporated herein by reference. A lower surfaceof adhesive sheet 206 may be centered on and adhered to interior surfaceof base panel 14 (as shown in FIG. 5) during assembly of the dronedelivery system 200. One or more shipped articles 210 (see FIG. 6) maybe placed on the upper surface of adhesive sheet 206, and the adhesivesheet 206 may then be adhered to itself so as to envelop the article 210and fix it securely in place within the tray 202 (as shown in FIG. 7).This may be desired both to prevent damage to the article 210 fromshifting during transport, as well as to prevent a weight shift thatcould negatively impact the drone's flight performance and safety.

In a preferred embodiment, one or both sides of blanks 10, 12 aretreated with a water-proof or water-resistant coating. The use of gussetpanels by tray 202 and lid 204 to form webbed corners alsoadvantageously provides container 201 with enhanced water resistance.Water resistance may be considered particularly desirable based on theincreased likelihood that a drone delivery service will need to delivercontainer to a location that is exposed to the elements.

Exemplary embodiments of blanks and methods for forming containers aredescribed above in detail. The apparatus and methods are not limited tothe specific embodiments described herein, but rather, components ofapparatus and/or steps of the methods may be utilized independently andseparately from other components and/or steps described herein. Forexample, the methods may also be used in combination with othercontainers and methods, and are not limited to practice with only thecontainers and methods as described herein. Rather, the exemplaryembodiment can be implemented and utilized in connection with many othercontainer applications. In particular, it will be recognized that theshipping containers and systems described herein may be suitable for usein applications other than drone delivery, e.g., as a general purposeshipping or storage container.

Although specific features of various embodiments of the invention maybe shown in some drawings and not in others, this is for convenienceonly. In accordance with the principles of the invention, any feature ofa drawing may be referenced and/or claimed in combination with anyfeature of any other drawing.

This written description uses examples to disclose the invention,including the best mode, and also to enable any person skilled in theart to practice the invention, including making and using any devices orsystems and performing any incorporated methods. The patentable scope ofthe invention is defined by the claims, and may include other examplesthat occur to those skilled in the art. Such other examples are intendedto be within the scope of the claims if they have structural elementsthat do not differ from the literal language of the claims, or if theyinclude equivalent structural elements with insubstantial differencesfrom the literal language of the claims.

What is claimed is:
 1. A lidded container comprising: a tray comprisinga bottom wall, first and second tray side walls, a first locking panelhingedly connected to an upper edge of said first tray side wall, and asecond locking panel hingedly connected to an upper edge of said secondtray side wall; and a removable lid comprising a top wall, first andsecond lid side walls, first and second corner gussets disposed on aninterior surface of said first lid side wall, and third and fourthcorner gussets disposed on an interior surface of said second lid sidewall, said first, second, third, and fourth corner gussets definingrespective first, second, third, and fourth gusset angled edges; whereinsaid lidded container is configured to be placed in a closed and lockedconfiguration by placing said removable lid over an open top of saidtray and pressing downwards so as to cause said first and second lockingpanels to fold outwardly until exterior surfaces of respective first andsecond locking panels are at least substantially adjacent to respectiveexterior surfaces of said first and second tray side walls, suchconfiguration allowing said first gusset angled edge to mate with afirst complementary angled edge of said first locking panel, said secondgusset angled edge to mate with a second complementary angled edge ofsaid first locking panel, said third gusset angled edge to mate with athird complementary angled edge of said second locking panel, and saidfourth gusset angled edge to mate with a fourth complementary anglededge of said second locking panel so as to lock said removable lid tosaid tray.
 2. The lidded container of claim 1, wherein said first andsecond locking panels are substantially trapezoidal in shape.
 3. Thelidded container of claim 2, wherein said first, second, third, andfourth corner gussets are substantially triangular in shape.
 4. Thelidded container of claim 1, wherein said tray comprises first, second,third, and fourth tray corner gussets.
 5. The lidded container of claim1, wherein said first lid side wall defines a first access notch in alower edge of said first lid side wall, wherein said second lid walldefines a second access notch in a lower edge of said second lid sidewall, wherein said first and second access notches are configured toprovide access to said respective first and second locking panels whensaid lidded container is in said closed and locked configuration.
 6. Thelidded container of claim 5, wherein said first locking panel defines afirst generally-rectangular notch in a lower edge of said first lockingpanel and wherein said second locking panel defines a secondgenerally-rectangular notch in a lower edge of said second lockingpanel.
 7. The lidded container of claim 5, wherein said removable lid isconfigured to be removed from said tray by pressing inwardly on portionsof first and second locking panels that are exposed through said firstand second access notches so as to move said first, second, third, andfourth gusset angled edges out of alignment with said respective first,second, third, and fourth complementary angled edges, thereby allowingsaid removable lid to be lifted up and off of said tray.
 8. A dronedelivery system comprising: a lidded container as claimed in claim 1;and a drone configured to carry said lidded container to a destination.9. A set of blanks for forming a lidded container comprising: a trayblank configured to form a tray; and a lid blank configured to form alid; wherein said tray blank comprises a first plurality of panels thatare hingedly connected to one another and comprising, in series: a firstlocking panel, said first locking panel defining first and second angledlocking edges; a first side panel configured to form a first tray sidewall in a set-up tray; a bottom panel configured to form a bottom wallin the set-up tray; a second side panel configured to form a second trayside wall in the set-up tray; and a second locking panel, said secondlocking panel defining third and fourth angled locking edges; whereinsaid lid blank comprises: a top panel configured to form a top wall in aset-up lid; a first lid side wall panel hingedly connected along a firstside of the top panel and configured to form a first side wall in theset-up lid; a second lid side wall panel hingedly connected along asecond side of the top panel and configured to form a second side wallin the set-up lid; a first pair of gusset panels configured to form afirst corner gusset in the set-up lid, said first corner gusset defininga first gusset angled edge; a second pair of gusset panels configured toform a second corner gusset in the set-up lid, said second corner gussetdefining a second gusset angled edge; a third pair of gusset panelsconfigured to form a third corner gusset in the set-up lid, said thirdcorner gusset defining a third gusset angled edge; and a fourth pair ofgusset panels configured to form a fourth corner gusset in the set-uplid, said fourth corner gusset defining a fourth gusset angled edge;wherein a set-up lidded container is configured to be placed in a closedand locked configuration by placing said set-up lid over an open top ofsaid set-up tray and pressing downwards so as to cause said first andsecond locking panels to fold outwardly until exterior surfaces ofrespective first and second locking panels are at least substantiallyadjacent to respective exterior surfaces of said first and second trayside walls, such configuration allowing said first gusset angled edge tomate with said first angled locking edge, said second gusset angled edgeto mate with said second angled locking edge, said third gusset anglededge to mate with said third angled locking edge, and said fourth gussetangled edge to mate with said fourth angled locking edge so as to locksaid set-up lid to said set-up tray.